Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:03:52 2012 Optimize a model with 24803 rows, 25440 columns and 99055 nonzeros Presolve removed 320 rows and 2 columns Presolve time: 0.54s Presolved: 24642 rows, 25438 columns, 123233 nonzeros Variable types: 0 continuous, 25438 integer (25438 binary) Found heuristic solution: objective 159.0000000 Root relaxation: objective 3.000000e+00, 23450 iterations, 4.37 seconds Total elapsed time = 11.81s Total elapsed time = 15.07s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 84 159.00000 3.00000 98.1% - 15s H 0 0 3.0000000 3.00000 0.0% - 15s Explored 0 nodes (61263 simplex iterations) in 15.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%